1242 First of January on Wednesday and the twenty-fifth day of the moon. Second year of the Solar Cycle; eighth year of the Decemnovennial Cycle; fifteenth year of the Indiction. MCCXLII. Embolismal year. Last year of the Ogdoad. E.
Donnchad Cairbrech O Briain, king of Thomond and his son Toirrdelbach died.
Mor daughter of Donnchad O Fergail rested in Christ.
Aed O Conchobair, that is, the Ex-cleric, son of Aed mac Ruaidri, was killed by Toirdelbach son of Aed mac Cathail Chrobdeirg.
Conchobar O Briain took the kingship of Thomond.
Brian son of Donnchad O Dubda, king of the Ui Fiachrach, Ui Amalgada and Erris, was killed by the way as he was going on pilgrimage to the monastery of Boyle.
The Archbishop of Armagh and the canons abbots of Ireland held a great chapter to honour the Order in Louth when some of the relics which Mochta had assembled from Rome were raised.
The Justiciar, with the Galls of Ireland generally and Fedlimid O Conchobair, made a great hosting into Cenel Conaill to avenge the death of Tadc O Conchobair. They encamped at Drumhome, where the leading men of Cenel Conaill came in and brought hostages.
The hospital of Sligo was presented by the Justiciar to Clarus Mag Mailin, in honour of the Trinity.
Tadc O Conchobair was captured by Cu Chonnacht O Raigillig at the instance of Fedlimid mac Cathail Chrobdeirg this year.
Magnus O Muiredaig was killed by Tomas Mac Murchada.
Niall son of Domnall Murach (?) son of Ruaidri O Conchobair was burned, together with three Ui Sechnusaig, in one house in Mayo by Lewis, one of the household of Mac Muiris [Fitz Gerald].
Aed O Mannachan died among the canons of Kilmore.
Domnall Mac Airten died this year.
The sons of Aed [mac Cathail Chrobdeirg] O Conchobair attacked Mac Gosdelb's castle in Brefne and demolished it.